The machine is like a graphics card, and the machine configuration problem is 20

A card can be rented on the 3A platform Stability and compatibility are good, but the game has always been the weakness of the A card If the game is played more, it is still N card A card 6750 1G is about the same N is 480 1G It is almost 500 to 100, depending on the brand and whether it is D5 or D3 video memory.

A card is 5770! This A card 650-799 is more. Cheap.

Than GTS450 New. N card GTS450 or GTX550TI is about 899 yuan The ** on the first floor comes to GTX450 The upstairs 480 is 3000 yuan - 4000 yuan 480 does not have D3 video memory.

450 and 550 are not the same grade, but the price is the same, both 899!!

450 is 128 bits (memory width).

550 is 192bit.

The 5770 is 128bit The advantage of the 5770 is that it is cheap, has low power consumption, low heat and high memory frequency, and has a high frequency of 4800M DDR5.

I'll tell you about it, see for yourself! ：

1. ASUS P8Z68-V LX is a motherboard about 10 years ago, and the graphics card interface on the motherboard is, so the recommended interface for the additional graphics card is also used.

2. The strongest graphics card of the interface is the "5 series" of N card and the "6 series" of A card, the performance of "5 series" of N card is from high to low, such as: GTX580, GTX570, GTX560Ti448, GTX560TI, GTX560, GTX550TI, etc., and the "6 series" performance of A card is from high to low, such as: HD6970, HD6950, HD6930, HD6870, HD6850, HD6770, etc., <>

3. The interface after the N card "6 series" and the A card "7 series" will limit the performance of the graphics card by the motherboard!

4. Because the graphics card should be added later, the power of the host power supply must be large, if you use GTX580, HD6970 recommended rated 700W power supply, if you use GTX570, HD6950 recommended rated 650W power supply, if you use GTX560Ti448, HD6930 recommended rated 600W power supply, if you use GTX560TI, HD6870 recommended rated 550W power supply, if you use GTX560, HD6850 recommends a power supply rated at 500W, and if you use GTX550Ti and HD6770 to recommend a power supply rated at 450W, the graphics card performance ranking is as follows:

5. Conclusion: Since the overall configuration of your CPU, memory, motherboard, etc. is relatively old, it is enough to use GTX560Ti or HD6870 for the graphics card when the power supply is sufficient. No matter how high the graphics card is, you can't perform with this configuration.

After upgrading the graphics card, you can play lol is not a problem, if you play games like chicken, you still have to change a new configuration! The CPU performance rankings are as follows:

Below 800, the performance of HD7770 is much higher than that of GTX650, and it is more cost-effective.

The better ones are MSI R7770 Power Edition, His 7770 iCooler, Sapphire HD 7770 1GB GDDR5 Platinum Edition, and Dilan Hengjin HD7770 Cool+ 1G DC.

The strongest card below 800 is HD7770, which is one gear stronger than GTX650, HD7770 Cool Energy + 1G DC is recommended, and the default core frequency is higher, higher than most HD7770 frequencies.

MSI (MSI) R7770 Power Edition 1G, 799 yuan (JD). The best graphics card for the price. The brand workmanship performance and cost performance are all in the forefront, which is worth recommending and buying.

The motherboard is also fully compatible, and it is also suitable to be paired with the i5 2500. Hope.

Boss: Tell me what your U is, too? Graphics cards, as long as they are in a general configuration, can be used, general-purpose, and can be said to be unless the military -- Or something else, more than 95 percent of them are compatible anyway, buy it and plug it in.

What model is your CPU? Is it the Core i5 or the Core i7?Which model is it?

Cards below 800 are actually not much suitable for playing games, the budget is slightly more than 100, you can buy a good card, there are several N cards that have dropped to about 900, the performance is very good, I personally recommend 6670 A card, about 499, it is worth considering.

Remember to change the power supply, don't burn it.

The second-hand GTX970 is almost more than 700 points, and the performance is enough, and if it is a new product, it is really not too good to buy it at this price.

P8Z68-V LX is the interface of LGA 1155, the second and third generations of i5, i7 are OK, depending on the price and individual, my personal recommendation is i7 3770K

In addition, pay attention to the power supply when changing accessories, so as not to be insufficient.